The US missile defence and deterrence system is becoming obsolete due to advancements in stealth missile systems from China and Russia. I do not believe that the US is concerned about Canada or Greenland, but only the airspace above those countries. If the US could intercept a missile in Canada or Greenland airspace, I do not believe the US would care how that impacted either country.
Alternatively, is the plan to build the dome on Greenland and Canada Arctic borders, but the US also wants to own that land? That's another problem, since neither Canada nor Greenland will allow the US to buy, or take, pieces of their country.
The US says that Canada needs to pay $71B for the "bogged down" project, even though the project appears to have limited benefit for Canada. The US also says that Greenland must belong to the US, again with limited benefit to Greenland.
Clearly there are serious problems with the project if the US needs money from Canada and land from Greenland (where the US is free to set up a military base as needed). The Dome project should have a plan that does not rely on other countries beyond approval to use airspace or to lease land for a military base.
Personally, I don't think the technology exists to extend the Iron Dome from current range of roughly 180 miles to roughly 2200+ miles (distance Canada-US border to Canada Northern border). A similar distance is needed to reach Greenland. (see google maps: distance tool). The goal is to detect missiles at the time they are launched in Russia and China.
Bottom line, if the US builds their Dome, Canada will automatically be covered regardless of paying for it.
"Canada will need to pay US$71 billion to be included in the Golden Dome defence system, U.S. President Donald Trump revealed Monday."
June 2025
Canada will need to pay US$71 billion to be included in the Golden Dome defence system, U.S. President Donald Trump revealed.
www.ctvnews.ca
"While Trump himself may have his own motivations, the U.S. defence establishment is genuinely worried about recent developments in Russian nuclear weapons technology, including stealthy hypersonic missiles and nuclear torpedoes that could target U.S. ports.
Fears that American missile defence and deterrence are being rendered obsolete are the impetus behind Golden Dome."
...
Intercontinental Ballistic Missiles that nuclear adversaries would fire at each other take the shortest direct route on a ballistic trajectory from their silos or launchers to targets. The shortest flight paths from China or Russia to the United States — and the other way — would take many of them over the Arctic region."
January 25, 2026
Israel’s David’s Sling is a mid-tier air defence system capable of intercepting missiles up to 300 km away. Developed with the US, it uses hit-to-kill Stunner interceptors to stop cruise and ballistic missiles.
www.wionews.com
www.euractiv.com
